From 09eab48b1b51ab35e53b3b2aa82a22ca427d063e Mon Sep 17 00:00:00 2001
From: Hunter Nickel <dementor9@yahoo.com>
Date: Fri, 4 Jun 2021 16:52:30 -0600
Subject: [PATCH] Add check for backstack size before pushing
 DownloadController (#5312)

(cherry picked from commit 64f95af3e51bc721db1be137e34007e72ee4aeb9)
---
 app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt
index 5d2bbbf98..62184017d 100755
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt
@@ -198,7 +198,9 @@ class MainActivity : BaseViewBindingActivity<MainActivityBinding>() {
                         controller?.showSettingsSheet()
                     }
                     R.id.nav_updates -> {
-                        router.pushController(DownloadController().withFadeTransaction())
+                        if (router.backstackSize == 1) {
+                            router.pushController(DownloadController().withFadeTransaction())
+                        }
                     }
                 }
             }